Tube compressor



F. S. HYATT.

TUBE COMPRESSOR. APPLICATION FILED Nov. 5, I920.

1,422,864.. at ted uly 18, 1922.

Par

FRAMES. HYATT, ISROOKLYN, YORK.

TUBE, co vrranssoa.

reeasee.

Application filed November 5, 1920. Serial no. 422,013.

To all whom itmdj/ concern:

Be it knownthat I,"FRANK S. Hvzvrrr, a citizen of: the imited titates,anda resident iicatiou. I

My invention relates to clamping devices designed to apply clampingpressure to tube or similar object and which, as usually constructed.embody an actuating cam or" member mounted in a pair oiiears or brack'ets rising from one clamping member and operating upon an upperor secondclamp ing member arranged between the ears.

Devices of this general character and made of sheet metal are describedin Letters Patent of August J. Frey No. 1,217,483 and 1,297,456 and alsoin the joint appli cation for patent filed by me with the said August J.Frey on September 10, 1919, No. 322,829, allowed October 2nd 1920.

In devices of this general character the practice heretofore has been tostamp out the lower jaw or clamping member and the ears or brackets fromsheet metal. the blank so formed and having the earsto be bent up in thefinished construction of said prior application being illustrated inFig. 1 of the accompanying drawings.

The object of my present invention is to permit the ears or brackets andthelower clamping member to be made of separate straight orsubstantially rectangular pieces of sheet metal, thereby effecting agreat sav ing in the amount of material required since the methodheretofore employed of stamping out the lower member and ears in asingle irregular cross-shaped piece is exceedingly wasteful of sheetmetal material.

The object of the invention is, at the same time, to properly assembleor combine the lower member and the ears so as to avoid the possibilityof their becoming detached from one another.

The present invention is herein shown as applied to the particular formor tube compressor described and shown in the oint application abovereferred to.

Fi 1 shows the blank embracing the lower member and the ears or bracketsemployed. in previous constructions as cut out or struck up from a sheetof metal and previously to the bending; up of the ears or brackets.

Fig. 2 shows in plan" the blank for lower member as made for the purposeor carrying out my present invention and Fig. 3 illustrates theblank {orthe earsor brackets as made for the purpose of my present invention.

Fig. 4. is an end view of the blank shown a in Fig. 3 after the bendingof the same toform it into a stirrup.

Fig. 5 is an endelevation or" the stirrup and lowerclamping'lmembeinassembled.

Fig. 6 is a vertical section through the same on the central line of theears or brackets i Fig. 7 is a'plan of the same parts.

Fig. 8

with my present invention. a i

1 is the lower clamping member made of a piece of sheet metal asillustrated in Fig. Qand having clamping jaws 8 which cooperate withclampin jaws 9 upon an upper clamping member 10 properly guided andoperated by the cam 3 pivoted by its pintles in the ears or uprights andprovided with the operating arms 5 and 6 and the intermediate strut orbrace 7 after the general manner described in the prior applicationbefore referred to.

In the previous construction the ears 2 in which the clamping jaw or camis pivoted rise "from the sides of? and are integral with the sheetmetal piece forming the lower clamping member 1. In my present inventionthe arms or ears are the sides of a piece of sheet metal like a stirrup('Fig. 4) in the foot 13 of which the clamping member 1. is supported asillustrated more particularly in the central section Fig. 6, the foot 13underlying the body of the member 1.

As before stated, this stirrup is made from a blank as illustrated inFig. 3, the ends of the blank being turned up and the sides given theproper curve to properly receive the tube to be clamped as shown in Fig.4. The clamping jaw or member 1 may be anchored in the stirrup in anysuitable way as by bending up part of the sheet metal of one member andinterlocking it with the other member, as for instance by using a slotor slots in the member 1 and bending down the ears struck up from themetal of the member 13 and passed through said slots. Conversely, aswill be readily recognized, the anchoring ears might rise from the bodyof the clamping member 1 support V is aside elevation of the completetube compressor constructed inaccordance Specification ofLetters Patent.Pgtgnfggd l ullv ll 8, i922,

ed in said stirrup and pass through slots in 13.

As will be seen, the construction is as strong as the old constructionof lower clamping member and ears or brackets while, at the same timethe cost of production is Very materially reduced.

The manner of guiding the upper clamping member on the ears or bracketsmay be that usually employed and consisting of slots in said memberthrough which the ears or brackets rise. Inasmuch as the lower clampingmember 1 rides in the stirrup, it will be rigidly held against thestrain imparted by the clamping aw or cam when ex erted upon the upperclamping member and the construction practically provides a solid baseand reinforcement for the lower clamping jaw which is necessarilysubjected to a great strain in the operation of the device.

What I claim as my invention is H- 1. In a sheet metal compression clampof the character described. the combination of two separate oblongpieces of sheet metal disposed transversely to one another; one of saidpieces being a flat piece of sheet metal constituting the lower clampingmember and located wholly below the tube to be clamped, the other piecebeing longer than the first and having its ends bent up to form the earsfor the cam operating upon a separate upper clamping member and meansfor securing the two sheet metal pieces together one upon the other, toform a sheet metal base of double thickness.

In compression clamp of the character described, the combination of alower clamping member, consisting of an oblong piece of sheet metal, asecond oblong piece of sheet metal of greater length than the first andbent to form. a stirrup in the flat base 01 which the first-named sheetmetal member rests, one of said members being provided with slots andthe other with ears passing through said slots and bent down to anchorthem together so as to form a base support for the tube of doublethickness of sheet metal and a clamping jaw pivoted in the ends of thelonger piece.

Signed at Brooklyn, in the county of Kings and State of New York this 3dday 01'' November A. D. 1920.

FRANK S. HYATT.

Witnesses ETHEL B. IilALLER, HAZEL BRILL.

